Permanent disability evaluations (PPD) are done to assess the degree of damage that results from a work-related injury or occupational disease. Once a work-related injury or illness reaches maximum treatment for improvement, an impairment rating is used to calculate the amount of monetary compensation to be paid for permanent disability.
PPD Evaluations and Ratings
A permanent disability rating is an assessment of the severity of permanent impairment. When an injury or illness reaches “maximum medical improvement,” meaning treatment is no longer effective for improvement, a physician or chiropractor will be assigned to perform an assessment of the extent, if any, of permanent disability.
To determine the level of impairment, a physician or chiropractor will perform a variety of tests on each injured body part and assign a disability rating based on the severity of the injury, and pursuant to the American Medical Association Guides to the Evaluation of Permanent Impairment, 5th Edition. Based on the overall physical and/or mental examination and final test results, the physician or chiropractor will express the outcome in a whole body percentage of disability. It ranges from 0 percent to 100 percent based on the severity of permanent disability.
The physician or chiropractor assigned to perform your rating examination will either be mutually agreed upon by the parties, or if agreement cannot be made, then randomly assigned by the Division of Industrial Relations. The rating doctor is not allowed to provide treatment or care, and is only tasked with ascertaining the level of impairment as result of the industrial/occupational claim.
An impairment is a problem that affects the normal functioning of a part of the body and makes a person unable to use their body in the same way they did before the accident or injury. Impairments caused by work-related injury or illness can include physical or mental problems and are assessed at the time of the rating examination.